Value of users’ “website” field?

I’m using BuddyPress as a part of a local university radio station’s groupware suite, installed on a single subdomain (I.e., people.stationID.com) and using WP’s Network functionality.

The problem I’m having is it seems BuddyPress sets the value of users’ “website” field to whatever the address of their BP profile field is so that, for instance, when a user posts a comment, the link that their name turns into goes to their BuddyPress profile.

Given we’re only using BP internally right now, is there any easy way to prevent BP from auto-filling this field? The other option might be to write some regex in the Comments template that just removes the link if detected, but this doesn’t seem like the most eloquent way of doing this.